Methyl 3,4-diamino-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2,6-diamino-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3,6-diamino-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2,5-diamino-3-(trifluoromethoxy)pyridine-6-carboxylate
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